Games like Space Atlas: The Solar System
Games like Space Atlas: The Solar System include Kerbal Space Program, Universe Sandbox, Kerbal Space Program 2, Totally Accurate Battle Simulator, and Spaceflight Simulator. We matched them by the tags players give Space Atlas: The Solar System on Steam (Exploration, Realistic, Simulation, Space Sim, and Education): closest matches first, and among equally close ones the better-known games.

Kerbal Space Program
Shared: Simulation · Space · Space Sim

Universe Sandbox
Shared: Simulation · Space Sim · Realistic

Kerbal Space Program 2
Shared: Exploration · Space · Physics

Totally Accurate Battle Simulator
Shared: Simulation · Realistic · Physics

Spaceflight Simulator
Shared: Space Sim · Simulation · Exploration

Elite Dangerous
Shared: Exploration · Space Sim · Simulation

Empyrion - Galactic Survival
Shared: Simulation · Exploration · Space

Space Engineers
Shared: Simulation · Space · Physics

X4: Foundations
Shared: Simulation · Exploration · Space Sim

Session: Skate Sim
Shared: Simulation · Realistic · Exploration

Reentry - A Space Flight Simulator
Shared: Simulation · Realistic · Space Sim

Solar Expanse - Space Exploration Manager
Shared: Simulation · Space · Realistic

BeamNG.drive
Shared: Simulation · Realistic · Physics

Uncrashed : FPV Drone Simulator
Shared: Simulation · Realistic · Physics

X-Plane 11
Shared: Simulation · Realistic · Physics

Universe Sandbox
Shared: Simulation · Physics · Space

SpaceEngine
Shared: Space Sim · Realistic · Space

Microsoft Flight Simulator 2024
Shared: Simulation · Realistic · Exploration

EVE Online
Shared: Exploration · Space Sim · Simulation

Euro Truck Simulator 2
Shared: Simulation · Realistic · Exploration

Microsoft Flight Simulator (2020) 40th Anniversary Edition
Shared: Simulation · Realistic · Physics

V: Rings of Saturn
Shared: Exploration · Space · Physics

American Truck Simulator
Shared: Simulation · Realistic · Exploration

PC Building Simulator
Shared: Simulation · Education · Realistic